#ifndef EQNS
#define EQNS

const double _PI = 3.14159265358979323846;

// prints the program header
void header();

void _wait(unsigned int seconds);

// get a fresh screen
void cls();
int promptRadius(double *radius);
int promptHeight(double *height);
void setCircum(double *circum, double radius);
void setTotalArea(double *area, double height, double radius);
void setCircleArea(double *circle, double radius);

#endif